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an athlete at the gym holds a 3kg steel ball in his hand his arm is 70 cm long and has a mass of 4kg what is the
which of the following statements is true about what will happen to cells depending on tonicity aturgor pressure pushes
a 395 turn circular loop coil 16 cm in diameter is initially aligned so that the axis is perpendicular to the earths
which of the following is most likely produced by the reaction of a strong acid with a strong basea hbrb kno3c naohd
calculate the molality of a solution of nacl if 40 kilograms of solution contains 320 moles of sodium
develop a hypothesis to predict the effect of changing light quality from white light to red green and blue light on
calculate the molar concentration of a potassium chloride solution if 24 liters contains 200 moles of kcl calculate the
a car is doing a loop-the-loop trick the loop has a radius of4 m asssume that the car is starting with the minimum
a disk of radius r has a uniform surface charge sigma on one side a circular hole of radius r2 is now cut in the center
the k0 particle has a mass of 4977 mevc2 it decays into a p- and p each having mass 1396 mevc2 following the decay of a
use the following reaction to find out how many grams of h2o you need to react with 56710-2 moles of li2o li2o h2o
we want to model the flow of water in a 15 cm diameter pipe at ms our air blower produces 14 x 10-3 m3s what pipe
a dam holds back water in the dam is a turbine that produces power with an efficiency of 073 the dimension c is 75 ft
human saliva has a ph of approximately 68 and can be considered a astrong acid bweak acid cstrong base dweak
a golf ball of mass 0045 kg is hit off the tee at a speed of 49 ms the golf club was in contact with the ball for 47 x
at a given instant an 55 mh inductor stored an energy of 73 microjwhat is the current in the inductor at this
consider a chromium-silver voltaic cell that is constructed such that one half-cell consists of the chromium cr
you need a transformer to reduce a voltage of 150 v in the primary circuit to 25 v in the secondary circuit the primary
when a potential difference of 12v is applied to a wire 66m long and 035mm in diameter the result is an electric
when carbonyl compounds are reduced with a reagent such as lialh4 or nabh4 and a new stereogenic center is formed what
a variable capacitor is connected to a battery of voltage v the capacitor initially has a capacitance c0 and charge q0
the space shuttle carries about 725times104 kg of solid aluminum fuel which is oxidized with ammonium perchlorate
what is the mass in kg of the air in a scuba tank that has an internal volume of 001 m3 and it is pressurized o that
a passenger on a ferris wheel moves in a vertical circle of radius r20 m with a constant speed v assuming that the seat